Material-moving mechanism for punching machines



L. H. VOLD ET AL MATERIAL MOVING MECHANISM FOR PUNCHING MACHINES Filed April 10, 1926 3 Sheets-Sheet l WITNES S Jan. 8, 1929. 1,698,326 L. H. VOLD ET AL MATERIAL'MOVING MECHANISM FOR PUNCHING CHINES iled A r 11 10, 1926 s sheets-sum 2 Jan. 8, 1929. 1,698,326

. H. vyou: ET AL MATERIAL MOVING MECHANISM FOR PUNCHING MACHINES.

Filed April 1o,- 1926 s Shets- Sheet 5 g WWW w nmw g I //VV ENTO R$ flTNSSES K: i 14642 Maire stars 1,698,325}f1} M m Q'F'FlCrEQEiQ Q LABS irvonn AnnKannR. ,I-I'AMMERSTRQM, or. ianrnnitfr innsvnvhma. f a

'MATEnIAni/Lovrne MECHANISM ron inrrcnme ivmonmnsj Applicationlfiled April 10, 1926. Serial 170 101378.

Our invention relates to loading and ,un-' loading devices, more particularly'to appa-.

comprise 'a, minimum number of parts and which shall be adapted to be utilized in sets to accommodate them for the'handling'of work of various shapesand dimensions.

Another object of our invention is to pro vide loading and unloading devices of such character as will permit their ready cooperation with machine-tools, adapted to act up onthe work, and with loading and unloading platforms to facilitate the handlingof the work" passing through the machines, in an eflicient and economical manner.

Still another objectof our invention islto provide loading and unloading devices which shall embody means for adjusting the actu-f ating mechanism to obtain the desired relative position and degree of inclinatio'n'ot' the work carrying members with respect to the loading platforms and thelocations in which the finished work is placed. 1 v V i V In the handling of relatively long structural elements such as channel beams, I

beams and the like, for machiningoperations, I

it is very difficult' to handle the work in'its manipulation around the machine element which is utilized to act upon. it. VHeretofore .it has required the services of a relatively large number of helpers to manipulate: structural elements, especially where a'plurality' of such elements were fed into a machine toolto be acted upon simultaneously. f- I v 7 It is a purpose of the present invention to eliminate the handling of the individual beams in placing them in their properfworking alignment with the machine member and in unloading them after they have "passed through the machine, and forthis purpose we have provided a device whichis adapted j I v portion27 adapted for engagement with'the' to'be located to maintain its-work-carrying member in proper working alignment with a loading platformja machine tool? and an': 'unloading space in a manner as will be'he'reinafter setforth.

In the accompanying drawings constitut ing a part hereof, and. in which like reference characters designate like parts, Fig} fl '51s; a sideelevational View of worlbhandling de vice embodying the principles of our inven-.f

tion associated with a loading mechanism and .a platform;'Fig. 2 is a similar view ofthe work-handling mechanism illustrating its} adaptation to unloading- Fig; 3 is a across] sectional viewthereofgta en along the line r V IIIlIII, Fi '2 and Fig.4 is a diagrami.

matic viewoi aplurality ofloading: and un: loading devices, showing their relative-posi-o tions and the manner of their alignmentwith;

a machinevtool'to which'the work isadvanced' andfrom which it is removed. V f l Themechanism provided according to the unloading-device; in either case the appaciple. As shown in :Figs.,.1 and 2, the basic I structureapplicable'to both usescomprises a work-carrying member 1, a plurality of levers 2 and 8,1'andasuitable support for base 4 the levers 2 and 3 beingrespectively pivotedat 5;and'6 to brackets carriedby the supportl." -The work-carryin'gmember 1 is providedlat' its undersidewith a bracket 7 carryingtrunnions or a shaft 8,:by-Whicli'the; lever 2 is -vpi-votally connected,. i-and-a guide; bracket 9 havinga movable guide block-1O to *lever 3 is pi-vot ally connected; r

The'levers 2 and3 are pivotally v to links 11 and '12-.at' 13 and 114; and the ,link

connected;

12 iscon nected toiav piston rod' 15 havin Va carrying memberlhas a fixed ipivotal .c'onnecpiston 16 disposedin the cylinder 17 o a r power actuatingfl-device. Thus; the 'worktion in the lever 2, and a floating, or sliding,

pivotal connection throu'gh lever S m mechanism of, Fig. l -includes-also' a} link 20 pivotally' connected "at 1'3 to 'lever. 2i and 1ink'11, the other endbeingpivotally con- In'e'cted at 21toa lever 23,;supported pivot; ally-atone end in a bracket; 2gand i i1 -1 1 connected at the otherflend to a link 22.: AAn .angularly movable bridge 25, pivotally, supe 'ported:byialoading platform 30 is pivotally' i connectediat; 26 to: link '22, the end adjacent i this connection-V is: provided with a cut-away 'unde'rsideofthework-carryingmember 1 1' when in its elevatedrposition as shown inthe f form the toggle showninfdottedlines;-

dotted lines 'The link 22 and lever23 are 4 provided with lugs '28" and 29 having complementary engagingfaces 31 which functionto 1 "support; the; link '22 andr'lever i 23 when-they ltezterring-itolFigr 3jal pluralityof theseinvention ,may be used as a loading or an {'0 r v Worlchandling' units may be cooperatively engaged at one or bothof their pivot supports 5 and 6 by securing anextension 33 thereto with a rigid coupling 34;. Referring to Fig. 2 the operation of our device briefly as follows: The solid lines show the workhandling member 1 in its. normal stock-reaceiving position with the work comprislng V a plurality of channel beams 35 disposed on rollers 36 which are inpermanent cooperative alignment with a machine tool such as a accomplished in an arcuate'man'n'er longitudinally of the ivork carrying member, as seen from the dotted line positi'on of Fig. 2. The reverse operation is effected cbyv admitting fluid pressureat the inlet 38.

1t= W111- be: noted; in Fig; 2v that immits pivotxpointi 6. to its-point ofgconnection with the slidebloclc 10 0f the Work-carry ing. member the: lever :3 has. a longer-fulcrum armwr than lever 2: so that-the momber 11 is raised 'toan inclined position:

thus permitting theychannel beams- 35 to slide; .oif by the a'ctionbf gravity: The

length of'the fulcrum arms'of the levers may bereversed to produce an. inclination. in the,

opposite 'directionuand in operation the differencein thelengths of the fulcrum arms i's compensated for 'by means of the slide block connection of the lever Withthe workcarrying member.

Whjen the mechanism is used for moving stockito a; machine tool, the op'erationfis-sim- 'ilar. to that described for'unloading, the

Worlccarrying member being raised and lowered in the same manner by applying" fluid pressure to the piston In this: application whenithe member 1 is raisedgth'e link is subjected to tension; and: actuates the assor ci'ated lever mechanism' to raise the bridge to cooperate with the work-carrying member in=the manner clearlyseen in the dotted line position of Fig. I 1. i As illustratedthe member when raised is shown-in dotted linesto be inclined relative: to the surface of theloadingtplatform to: freely'permit the sliding of the-channel beams from the platform 30 'onto the .Work carrying member, this inclinatio'n 'being secured by makingthe ful crum arm'=of lever. 2- longer than thatiof lever 3. For loading purposes thememberl lmay be provided with aplurality of gage blocks Toraise the member to its eX-' 40- which are disposed. between successive channel beams 35 and Which are proportional in their thickness to the spacing of the rollers 36'so as to 'e'fi'e'ct the proper alignment of the channellbeams relative to each other and to the operating-mechanism to which they are fed; Referring to Fig. '4; of the drawings, a number of such: work-handling devices are shown ina cooperative relation with a machine tool loto manipulate channel beams orv other shapes by receiving theniin the manner shown in Fig. l from-a vork loading platform 30 disposedon-one side ofthe machine'too'l and placing. them on therol-lcrs 3G, from-Which they areipassedtthrough the machine 4E5v and subsequently raised. off the rol1crs 36 to the opposite side of the machine and dumped in the manner sho'wn-inlFig. 2 either on the same side of the loading platform or on the otherside of theimachine 4.5. It is evident fromthe foregoing-description of our invention that a' loadingand unloading apparatus made in'accordance therewith is adapted for use in'the handling. of heavy relatively longfstructural members in connection withtheir fabrication by machine 'tools orthe like and' that suchwapparatus .may be adapted foruse in. connection with any shapeof structuralmembers or bars for any purpose where such functional character istics as possessed by this device may-be suitably. employed. It isfurther evident. that such an apparatus funotionszin a simple and economical manner andeliminates the necessity for manual labor to a great extent Although We have described a specificembo'diment ofroun invention .it will be obvious to thoseskillcd inthe art that various modifications may: be made in the details ofconstruction and in the arrangement of theseveral' cooperating parts v without departing fronrthe principles herein set forth.

We claim: V J 1'.;.The?combination with a loading plate -form of a work ca-rrying member, actuating 'means fOIfitllB latter to bring. it in cooperative alignment with said platform and to adjust the work to itsopera-tive position, and

Val-movable bridge adaptedto cooperate with said platformi-and. the said work-carrying member.

2. The combination with a loading platform of avworl'r-carrying member, actuating means for the latter to bring it in cooperative alignmentgwith said platform and to adjust the'workito its operative position, andamovable bridge operatively connectedrto sai'dactuating means.-

3; The combination with a loading platformof a-Workrcarryi'ng. member, actuating means for the latter tobring it in cooperative alignment with said platform and to: adjust thework to its operative positiom. and a movable bridge pivotally mounted on said platform and operatively connected-to saidv actuating means.

4. The combination with a loading platform of a work-carrying member, actuating means for the latter to bring it in cooperative alignment with said platform and to ad- 7 just the work to its operative position,'and

a movable bridge pivotally mounted on said platform and operatively connected to said actuating means adapted to engage said work-carrying memberv to provide an uninterrupted loading surface.

5. The combination'with a loading platform of a work-carrying member, actuating means for the latter, to bring it in cooperative alignment with said platform and to ad-- just the Work to its operative position, and a movable bridge adapted to cooperate with said platform and the said work carrying member, said actuating means comprising a' system of power .actuatecl levers and links connected to said work-carrying member.

6. The combination with a loading platform of a work-carrying-member and a con necting bridge therefor, a'plurality of levers and links connecting said carrying member and said bridge, and actuating means for operating said levers and links to adjust said carryingmember to its work-receiving and discharging position.

7 In'awork-manipulatingdevice, the com carrying mem er in arcuatemanner.

8. The combination set forth in claim said levers being of different lengths, whereby to tilt the work-carrying member when in I raised position. 1

9. The combination set pressure operated piston and'links connecting said piston and levers. g 1 10.'In a Work-manipulating device, the

combination of awork-carr'ying member, a fluid-pressure operated piston, links assolengths pivotally I disposed between said work-carrying member and links, one'of said levers comprising a sliding block linkagejslidmg in said. member,

,In testimony whereof, We hereunto our names. LABS H. VOLD. V I T KARL BQHAMMERSTROM.

forth in claim7, said actuatlng means comprising a'fluidciated with said iston, and a plurality of 7 separate bent lever linkages of difierent 

